Mobile-Velocity adaptive Vertical Handoff in Integrated WLAN and WiBro Networks

Cha, Bin; Seo, SungHoon; Choi, Yeomin; Song, JooSeok

doi:10.1109/iciafs.2008.4784002

Cited by 7 publications

(3 citation statements)

References 5 publications

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“…It is proposed in [9] that the duration of dwell timer should not be static; its value should be adjusted in accordance with the movement of MS. In [10], the authors have proposed a mobile-velocity adaptive vertical handover that avoids ping pong effect by considering the velocity of MS. However, the authors have defined dwell time as the time a MS may spend within the coverage area of target network.…”

Section: Prevention Qf Ping-pong Effectmentioning

confidence: 99%

Efficient vertical handover approaches for increased user satisfaction in next generation networks

Salam

Mushtaq

Khalid

et al. 2011

International Conference on Computer Networks and Information Technology

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The next generation of wireless networks will integrate the current co-existing wireless networks to allow the users to connect to the network that best suits their needs. The users will be enabled to roam among diff erent networks by a process known as vertical handover. Vertical handover can be imperative or alternative depending upon the reason of handover initiation. In this paper, we have proposed algorithms to perform imperative and alternative handovers.Our proposed algorithms are efficient in terms of decrease in handover call drop rate and avoidance of ping-pong effect. To elongate the battery life of mobile station, we have proposed a power-based algorithm that will be triggered when the power of mobile station drops below a certain threshold. All of our proposed algorithms will increase user satisfaction in 4G networks in terms of received signal strength, QoS and conservation of battery life.Keywords-4G networks, alternative handover, imperative handover, QoS, user preference, utility based handover, vertical handover.

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Section: Prevention Qf Ping-pong Effectmentioning

confidence: 99%

Efficient vertical handover approaches for increased user satisfaction in next generation networks

Salam

Mushtaq

Khalid

et al. 2011

International Conference on Computer Networks and Information Technology

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show abstract

“…In this study, user velocity is randomly generated in the simulation scenario. In practical level, some studies suggested that MS is equipped with digital map and Global Positioning System (GPS) to ease the task of speed estimation [6,9]. Digital map and GPS can inform the locations, street names, and the velocity of vehicles.…”

Section: Simulation Scenariomentioning

confidence: 99%

“…The VHO blocking probability is reduced while maintaining reasonable throughput in the WLAN [24]. It will also reduce ping-pong eect [9,25] and dropping probability [26].…”

Section: Introductionmentioning

confidence: 99%

Optimum Threshold for Velocity Considered-SINR Based Vertical Handoff Decision in HetNet

Widjaja

Uthansakul

2016

ECTI-EEC

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A heterogeneous network (HetNet) that consists of various wireless networks is being massively studied. Integration of the networks should be error free to achieve seamless communication. The seamless vertical handoff (VHO) remains a challenging problem in HetNet studies. Several criteria for VHO decision have been studied in the literature, such as Received Signal Strength (RSS) and Signal to Interference plus Noise Ratio (SINR). It has been shown that SINR based VHO has superior performance compare to RSS based VHO. However, there are some limitations in SINR based VHO scheme. This study aims to overcome those limitations by considering user velocity as an additional criterion for SINR based VHO decision. User velocity is represented in the value of additional SINR threshold. The basic principle of the proposed algorithm is that slow speed user should stay longer in WLAN cells and high speed user should stay longer in WCDMA cells. Simulation results show that there is a trade-off between average throughput and the number of unnecessary handoffs per call. In this study, optimum threshold is obtained when the high percentage of unnecessary handoffs reduction is reached with an acceptable value of average throughput for multimedia data transfer.

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Maximizing QoS by cooperative vertical and horizontal handoff for tightly coupled WiMAX/WLAN overlay networks

Saravanan¹,

Raj²

2016

Cluster Comput

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Mobile-Velocity adaptive Vertical Handoff in Integrated WLAN and WiBro Networks

Cited by 7 publications

References 5 publications

Efficient vertical handover approaches for increased user satisfaction in next generation networks

Efficient vertical handover approaches for increased user satisfaction in next generation networks

Optimum Threshold for Velocity Considered-SINR Based Vertical Handoff Decision in HetNet

Maximizing QoS by cooperative vertical and horizontal handoff for tightly coupled WiMAX/WLAN overlay networks

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